Was the BCM System Check performed?

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Go to Step 2

Go to Diagnostic System Check - Body Control System in Body Control System

Was the Audible Warnings System Check performed?

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Go to Step 3

Go to Audible Warnings System Check

1. Turn the ignition switch to the OFF position.
2. Remove the key from the ignition.
3. Using the scan tool, enter BCM Data List.
4. Select Input 1.

Does the KEY IN IGNITION test display NO?

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Go to Step 4

Go to Step 8

1. Turn the ignition switch to the OFF position.
2. Remove the key from the ignition.
3. Move the headlamp switch to the OFF position.
4. Using the scan tool, enter BCM Data List.
5. Select Input 2.

Does the PARKLAMPS test display OFF?

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Go to Step 5

Go to Step 9

Inspect the connections at the BCM.

Are the connections in need of repair?

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Go to Step 6

Go to Step 7

Repair the connections as necessary.

Is the repair complete?

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Go to Audible Warnings System Check

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Replace the BCM. Refer to BCM Replacement in Body Control System.

Is the repair complete?

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Go to Audible Warnings System Check

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Locate and repair the short to ground in CKT 80 between the BCM connector C2 terminal B9 and the key in ignition alarm switch.

Is the repair complete?

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Go to Audible Warnings System Check

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Are the park lamps ON with the switch OFF?

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Go to Exterior Lights System Check in Lighting Systems

Go to Step 5